Jacquard-machine for looms.



PATENTED MAR. 3,1903;

K G I L B A G L W & E L

JAGQUARD MACHINE FOR LOOMS.

APPLIOATIOH FILED OUT. 3, 1902;

no MODEL.

I gwamons W r fimifw.

WITNESSES:

' ATTORNEYS mam PETERS :0, mm

UNITED STATES PATENT OFFICE.

JOSEPH E. GARLICK AND WALTER J. GARLICK, OF PATERSON, NEW JERSEY.

JACQUARD-MACHINE FOR LOOMS.

SPECIFICATION forming part of Letters Iatent No. 721,885, dated March 3,1903. Application filed October 3, 1902. Serial No. l25|730. (No model.)

To all whom it may concern:

Be it known that we, JOSEPH E. GARLIOK and WALTER J. GARLIOK, citizensof the United States, residing in Paterson, in the county of Passaic andState of New Jersey, have invented certain new and useful Improvementsin J acquard-Machines for Looms; and we do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the ac: companying drawings, and tocharacters of reference marked thereon, which form a part of thisspecification.

This invention constitutes an improvement upon that embodied in UnitedStates Letters Patent No. 687,223 for jacquard-machine for looms inwhich the main identifying feature consists in providing ajacquard-machineof the open-shed type with means whereby thecard-cylinder is required to act but once on the needles in each cycleof action of the parts instead of twice, as in other machines of thisclass.

The objects designed to be attained by the present invention will behereinafter more particularly set forth in describing our improvedmachine and its operation.

Referring to the accompanying drawings, in which the invention is fullyillustrated, Figure 1 is a View in side elevation of said machine. Fig.2 is a view in side elevation of a detail; and Fig. 3 is a top plan viewof the same detail, together with other parts.

In general features of operation and as to most of the parts there iscomplete identitybetween our aforementioned patented machine and thatconstituting the present invention. It will thereforebe unnecessary forus to refer to parts of the machine other than those having to dodirectly with the changes going to make up the improvement.

In our patented machine the upper grid has its up-and-down motion in theframe of the machine imparted to it through verticallyreciprocating rodswhich carry it and which are guided in the frame, said rods beingsuspended from certain oscillating parts designated cranks throughpitmen. This form of connection between the cranks and the rods whichcarry the upper grid is such that the approach of the grid to itslowermost stopping-point is not gradual enough, with the consequencethat an appreciable jar existed or at least seemed to exist. Theprincipal reason for this is that the said connection between the cranksand the rodsnamely, the pitmen-is direct and is not capable ofundergoing any lost motion. In order to overcome this abrupt stopping ofthe upper grid as it reaches its lower limit of movement, we have notonly altered the connections between the parts which correspond to thecranks aforementioned and the rods which carry the grid, but havechanged the construction of the cams which actuate said parts, with theresult that the grid is caused to approach its lower limit of movementquite gradually,

though without interfering with the proper operation of the machineas awhole.

In carrying out this object of the invention the vertically-sliding rodsa, which carry the upper grid 6, are connected with the oscillatingparts or cranks (marked 0 in Fig. 1) byjointed connections d. The cranksbeing provided with detents (hereinafter to be described) are at theproper timenamely, onthe downstroke of the gridimpinged against theconnections at their joints and cause them to buckle, the consequent anddesired effect being that while their upper ends move at the same rateat which the cranks move their lower ends'gradually move more and moreslowly, which latter motion is directly imparted to the grid by thedirect connection afiorded between said lower ends of the connectionsand the grid by the rods a.

The cranks aforementioned are illustrated in detail in Figs. 2 and 3,where is shown the one which is on the near side of the machine as itappears in Fig. 1. It will be understood that the one on the fartherside of the machine is exactly like this one except that it is thereverse of it in every respect. The crank comprises two members e and f,secured together by means of bolts g, penetrating fitting-holes in oneof these parts and longitudinal slots h in the other, so that they arerendered adjustable longitudinally. To insure their being securely fixedagainst movement after being once adjusted, their engaging faces areserrated, as at i. The member e is provided with the stub-shaftj,affording the pivot for the crank, this being journaled in the frame 7cof the machine, preferably in the upper part thereof, and provided witha retaining-nut Z. The memberfhas a downwardly-projecting arm m,provided with a projection 12, (which may be an antifriction-roller,)which is adapted to impinge against the jointed connection (1 at thejoint therein, it being remarked that this connection preferablycomprises a relatively long pitman 0, which is pivotally connected withthe adjacent rod a at its lower end, and a relativelyshort link 12,which is in turn pivotally connected with the free end of the member (2of the crank, as at q, so that thus the joint between the pitman and thelink at r is brought into the path of movement of the projection 72. Thecranks are actuated so as to impart actuation to the grid from the cams.9, said cams having their center of rotary movement at t in the frame70. u designates the slot in one of these cams, in which moves anantifriction-roller or other form of projection v, which is carried by,preferably, the member 6 of the crank. In our patented machine thedisposition of the slots in the cams was such that when the cranks werein their lowermost positions their projections engaged the slots at thepoints of the latter which were the farther from the center of rotationof the cam. In the present instance the slots are disposed so that atthe same position of the cams their projections engage the slots at thepoints of the latter which are the nearer to the center of rotation ofthe cams. In other words, the slots are relatively reversed. Thedifference in the disposition of the slots in the two machines resolvesitself into an advantage in our present machine over the patentedmachine in that as the cam approaches its lower limit of motion it iscaused to impart to the crank a motion which is gradually growing slower(as the grid falls) than faster. Thus both by changing the form of theconnection between the cranks and the rods a and the disposition of theslots in the cams the desired object above pointed out is renderedattainable. In our patented machine the initial outward movement of theknife-frame (marked 43 in the patent) was imparted thereto by leverswhich were engaged by tappets on the cranks. In the present instanceinstead of placing the function of actuating these levers (marked 20 inthe accompanying drawings) on the cranks the cams 8 'move the levers,being provided with antifriction-rollers m, which engage the lower endsof the levers 10, said levers being for this purpose preferably providedwith downwardly-projecting extensions y. When the cams rise, the rollersw impinge against said extensions y, pressing the same and theknife-frame z forward, so that upon the subsequent fall of theknife-frame it will retain back temporarily such needles 2' as have beenselected by the card-cylinder 1 to determine which hooks 2 are to drop.The change is not only more expedient in the presentinstance, where theconstruction of the cranks has been so altered that it would not bepractical to employ them to operate the levers, but results in an actionwhich is effected with less exertion of power, less friction, and morepositiveness.

Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is

1. Ina jacquard-machine, the combination of the frame, a grid, actuatingmeans for the grid, operative connecting means between said actuatingmeans and the grid comprising a jointed member, and means for bucklingsaid member at the joint therein, substantially as described.

2. In a jacquard-machine, the combination of the frame, a grid, a crank,a jointed member connected with said crank at one end, operativeconnecting means between the other end of said jointed member and thegrid, and a detent carried by said crank and engageable with saidjointed member to buckle the same at the jointtherein, substantially asdescribed.

3. In a jacquard-machine, the combination of the frame, a grid, a cam,an actuating part engaging the cam, and operative connecting meansbetween the actuating part and the grid, the end portion of the actingsurface of said cam which is engaged by said part while the grid isadjacent its lowest limit of movement being nearer to the center ofmovement of said cam than the remaining portion of said surface,substantially as described.

4. In ajacquard-machine, the combination, with the frame, the grid, thehooks and the needles controlling said hooks, of a knifeframe adapted toengage said needles and temporarily retain them in their pressed-backpositions, a cam, operative connecting means between the cam and thegrid, and a movable part connected with said knife-frame, said movablepart being adapted to be actuated by the cam, substantially asdescribed.

In testimony that we claim the foregoing we have hereunto set our handsthis 6th day of September, 1902.

JOSEPH E. GARLICK. YVALTER J. GARLICK.

\Vitnesses:

JOHN W. STEWARD, JAMES B. NEWTON.

